Remove deprecated slurm options MEMORY and MEMORY_PER_CPU

[jonathan-eq]

Issue
Resolves #9465

Approach
✂️

(Screenshot of new behavior in GUI if applicable)

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'pytest tests/ert/unit_tests -n logical -m "not integration_test"')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.94%. Comparing base (c9d43bc) to head (dcdecd5).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9496      +/-   ##
==========================================
- Coverage   91.94%   91.94%   -0.01%     
==========================================
  Files         433      433              
  Lines       26748    26722      -26     
==========================================
- Hits        24593    24569      -24     
+ Misses       2155     2153       -2     

Flag	Coverage Δ
cli-tests	39.41% <50.00%> (-0.01%)	⬇️
everest-models-test	34.69% <50.00%> (-0.01%)	⬇️
gui-tests	72.21% <50.00%> (+0.05%)	⬆️
integration-test	36.94% <50.00%> (-0.04%)	⬇️
performance-tests	52.00% <50.00%> (+0.01%)	⬆️
test	40.63% <50.00%> (+<0.01%)	⬆️
unit-tests	74.12% <100.00%> (-0.02%)	⬇️

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[xjules]

Looks very good! Had a question on the different memory formats.

[xjules]

Let's ✂️ 🚀